Trusted Sources

Google Knowledge Graph: Entity isReference Domains

Dataset: 62,202 isReference domains | entities

Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.

The Google leak in May 2024 confirmed that Google explicitly associates people with their profile pages (isReference) and articles they have written (isAuthor).

⚠️ You Can't Use Just ANY Domain!

Out of 1,738,093 domains we monitor, only 62,202 qualify as isReference domains.

3.65%

Only 3.65% of domains earn isReference status from Google. Domain selection is critical.

Key concepts:

Wikipedia is NOT Required (or even your best bet)

Wikipedia: 6 million entities
Kalicube Pro: 71 million entities
Knowledge Graph: 50 billion entities

0.012%

Wikipedia covers only 0.012% of the Knowledge Graph. If your entity isn't in that 0.012%, you need to build a Knowledge Panel with ~30 isReference url instead.

📊 Kalicube's Entity Validation Dataset

1,738,093
Domains Checked Regularly
62,202
isReference Domains
3.58% qualify
23,295,240
URLs Monitored
72,716,941
Entities Tracked

💡 Even Small Niche Domains Have isReference Authority

Examples from our dataset (December 2025):

kalicube.com 21 entities
searchengineland.com 11 entities
jasonbarnard.com 86 entities
searchenginejournal.com 270 entities
entrepreneur.com 1,292 entities
forbes.com 2,823 entities

Your niche-specific domains may have similar authority in your category.

Top 100 isReference Domains for All Entity Types

Rank Domain Entity Count
1 wikipedia.org 364,086
2 instagram.com 130,762
3 x.com 70,959
4 linkedin.com 49,803
5 namu.wiki 36,260
6 facebook.com 34,913
7 google.com 33,441
8 youtube.com 31,480
9 legacy.com 26,725
10 britannica.com 21,906
11 reddit.com 19,439
12 dictionary.com 18,343
13 amazon.com 14,290
14 fandom.com 12,194
15 microsoft.com 10,638
16 wiktionary.org 9,846
17 tiktok.com 9,264
18 letterboxd.com 8,317
19 crunchbase.com 8,171
20 apple.com 6,920
21 yahoo.com 6,681
22 justwatch.com 5,868
23 rottentomatoes.com 5,853
24 cambridge.org 5,812
25 quora.com 5,576
26 shopee.co.id 5,410
27 forbes.com 4,953
28 epicgames.com 4,922
29 hbomax.com 4,812
30 time.is 4,790
31 wikiwand.com 4,684
32 history.com 4,569
33 espn.com 4,455
34 fifa.com 4,280
35 shopee.ph 4,280
36 billboard.com 4,024
37 dictionary.net 3,940
38 bbc.com 3,885
39 nhl.com 3,822
40 pornhub.com 3,758
41 github.com 3,748
42 indeed.com 3,362
43 google.co.il 3,357
44 imdb.com 3,335
45 bing.com 3,331
46 spotify.com 3,324
47 temu.com 3,310
48 genius.com 3,176
49 independent.co.uk 3,171
50 deel.com 3,047
51 nih.gov 3,042
52 xhamster.com 2,991
53 uk.com 2,990
54 vocabulary.com 2,971
55 eo-paris.fr 2,876
56 bloomberg.com 2,871
57 house.gov 2,855
58 theguardian.com 2,849
59 bbc.co.uk 2,847
60 nfl.com 2,831
61 thesaurus.com 2,801
62 reuters.com 2,712
63 goodreads.com 2,590
64 radiofrance.fr 2,569
65 televisionacademy.com 2,516
66 netflix.com 2,507
67 amazon.co.uk 2,416
68 trustpilot.com 2,395
69 zhihu.com 2,386
70 ebay.com 2,378
71 aliexpress.com 2,340
72 amazon.fr 2,317
73 the-independent.com 2,294
74 ca.gov 2,269
75 one-line.com 2,193
76 pinterest.com 2,194
77 gog.com 2,187
78 rateyourmusic.com 2,188
79 gov.uk 2,131
80 inc.com 2,124
81 watch.plex.tv 2,112
82 merriam-webster.com 2,100
83 delta.com 2,094
84 nba.com 2,091
85 soundcloud.com 2,082
86 itv.com 2,078
87 loc.gov 2,076
88 google.com.br 2,069
89 libri.de 2,055
90 stanford.edu 2,034
91 playstation.com 2,033
92 premierleague.com 2,032
93 lyrics.com 2,028
94 search.google 2,007
95 entrepreneur.com 2,002
96 steampowered.com 2,004
97 metacritic.com 1,999
98 hotels.com 1,995
99 wikidata.org 1,978
100 researchgate.net 1,963
101+ 62,102 additional niche-specific domains in full dataset covering 71,552,187 additional entities

Why This Data Matters

Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.

Entity Validation at Scale

Google's Knowledge Graph requires consistent entity recognition across validated domains.

  • Only 3.65% of domains (62202 out of 1738093) qualify as isReference
  • Brands typically need ~30 entity-validated url for a stable Knowledge Panel
  • Each niche has unique entity authority patterns
  • Generic "authority lists" miss 95%+ of niche-specific opportunities

⚠️ This Free List is Intentionally Limited

The top 100 domains shown above are dominated by massive generalist sites. For 99% of brands, the real opportunities lie in the niche-specific domains that only appear in our full platform dataset.

Recommended Reading:

🔐 Find YOUR Niche-Specific isReference Domains

We monitor 23M+ URLs across 1.7M domains to identify the exclusive 3.65% that qualify as isReference domains for 72M+ entities. The Kalicube Pro platform maps your competitive landscape and identifies your niche-specific opportunities in 15 minutes.

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